Marketcap, or market capitalization, reflects the total market value of a cryptocurrency, serving as a crucial metric for assessing its value and adoption. Calculated by multiplying price by circulating supply, it enables investors to evaluate stability and market position. Major cryptocurrencies by marketcap in 2026 include Bitcoin and Ethereum, with others like Ripple and USD Coin holding significant positions. Understanding marketcap aids in differentiating between established assets and more speculative options, guiding investment strategies.